PDF malware analysis — malicious · f2f056b762a99f4c

MALICIOUS

PDF

88.6 KB Created: 2021-09-06 05:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07

MD5: c87b3d38fd1e20121b527540299d7918 SHA-1: 76ddb792a8cc21369fc25da954d0cd8f7e6866f7 SHA-256: f2f056b762a99f4c188afa2d12a3a6b3dcd24a25d66aae5866d7887052346bf4

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous external URLs embedded within the document, many pointing to compromised CMS upload directories or disposable hosting, suggest a phishing or malware distribution campaign. The file's structure and the presence of embedded links indicate it is likely used as a lure to redirect users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9905

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://wastran.ru/uplcv?utm_term=ghanaian+dishes+recipes+pdf PDF link annotation
- https://fotobolfestmeny.hu/mvc/userfiles/file/tanapobevosene.pdfIn PDF document text
- http://halaljones.com/uploads/files/9632261698.pdfIn PDF document text
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a899e1c6c2e---retiloloxegilupu.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078bbe398d6f---labonor.pdfIn PDF document text
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/9ce3447347d061f3765f37d8253191d8/jofoli.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/aeda81d7e3359f5ce14a317294ce10f0/mijugadelut.pdfIn PDF document text
- https://pottoka.info/files/galeria/files/62366310143.pdfIn PDF document text
- http://a-swiss.com/upload/userfiles/file/xetixa.pdfIn PDF document text
- http://businessvaluationapp.com//fck_files/file/57167054393.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/97545948077.pdfIn PDF document text
- http://glotecgh.com/upload/editor/file/22354287859.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/7794363036.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cdb3ef3031c---44525716106.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/90d8050dc125d9bc60e5c821494ef649/kifedu.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16099c832a03c5---wazaxo.pdfIn PDF document text
- http://gayaarchi.com/userfiles/file/20210810190220.pdfIn PDF document text
- https://derechosenred.org/aym_image/files/23912360786.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161108187e03c7---92030763493.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/7976ee3e14a6a522a6b3eeae0eda3ad2/xekibevumerilizor.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d6d39ac73d6---vibosoravaxisozusefuzeg.pdfIn PDF document text
- https://www.deuba.info/wp-content/plugins/super-forms/uploads/php/files/eph2h486k53c7ksm21ng958h81/kasofidunaseretaripaf.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612ebaaf1e7ab---tazugosajalejo.pdfIn PDF document text
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/onh48m611v0ksasbdltjq7ut26/87554497441.pdfIn PDF document text
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/35bbdea3a07622b1b8b3e0651d816d2d/savedox.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/cfa36806c41f64ba931babec3bd30caf/5443118052.pdfIn PDF document text
- http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607347c151ac4---mufodekixazavosukojijegem.pdfIn PDF document text
- https://haysalon.com/public_html/userfiles/file/pivijijexerodafilu.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f594.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF594	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00010da6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10DA6	18084 bytes
SHA-256: `f0a20be0f4f7fb70f02dfd5110108520d8d2ee3696b6ead5ba8257bf3c6f7192`
`font_02_sfnt_off00013c2a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13C2A	10492 bytes
SHA-256: `1dcb1d3417123a13f4aec9c9c6904c0dab8be9f44161f4945392d2a28ecae6bb`

Open this report in the interactive analyzer, or submit your own file for analysis.